Is it possible to find the object named with specific string.
For example i can use that in php
$objectname="foo";
$foo="bar";
echo $$objectname="bar";
is this possible? objectbyname would a proper function for this.
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3 Answers
It could be possible if you stored named objects as properties or in some sort of dictionary. Then you could do something like this:
// Put object into dictionary
[dictionaryWithObjects setValue:someNamedObject forKey:@"someNamedObject"];
// and then retrieve it
id object = [dictionaryWithObjects valueForKey:@"someNamedObject"];
And I'm not sure ObjectiveC supports that level of metaprogramming.
Comments
It doesn't look quite as it does in PHP but, yes, it is possible to get a class from a string. You use the NSClassFromString function.
For example the following two lines are equivalent:
id a = [[NSClassFromString(@"NSString") alloc] init];
id a = [[NSString alloc] init];
answered Jun 4, 2010 at 9:11
Stephen Darlington
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Comments
You can use NSClassFromString() to get a class, but for specific instances of an object I don't think this is possible.
